It's not causing me any pain currently, though I have noticed slightly decreased mobility in the finger they're on.
Doctors advice was mainly to invest in speech recognition software (I work as a support analyst/developer during the day and am bootstrapping an idea in the off-time) so I wondered if anyone else on HN suffered similar, and had any suggestions for things that might help (I mentioned it in #startups and was told that change of posture and exercises would possibly help, something my doctor didn't mention)
I already take regular breaks from the keyboard (usuaully 5mins or so out of every 60 I step away completely during the work day)
Oh, and here's what mine look like for reference
http://dl.dropbox.com/u/730422/Photo%2010-05-2012%2011%2012%2051.jpg
http://dl.dropbox.com/u/730422/Photo%2010-05-2012%2011%2013%2010.jpg
[1] http://en.wikipedia.org/wiki/Ganglion_cyst